<?php
/* test array */
$basic_user_info = array (
		"a" => "hello",
		"b" => "world"
		);
		
$profile = array (
			"basic_user_info"  => $basic_user_info
			);

echo $profile;	/* this output "Array" */		
echo $profile["basic_user_info"];	/* this output "Array" */
echo $profile["basic_user_info"]["a"];	/* this output "hello" */
echo $profile["basic_user_info"]["b"];	/* this output "world" */

?>